Home / 99,819.39-149,655.27-47,167.38

Finding the Fourth Proportional to 99,819.39, 149,655.27 and 47,167.38

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Solution

The fourth proportional to 99,819.39, 149,655.27 and 47,167.38 is: 70,716.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,819.39 : 149,655.27 = 47,167.38 : x
  2. Step 2: Convert to fraction form
    99,819.39/149,655.27 = 47,167.38/x
  3. Step 3: Cross multiply
    99,819.39x = 149,655.27 × 47,167.38
  4. Step 4: Simplify right side
    99,819.39x = 7,058,846,989.09
  5. Step 5: Solve for x
    x = 7,058,846,989.09/99,819.39
  6. Step 6: Final answer
    x = 70,716.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.